Centrifugal oil-burner.



IVI. A. FESLER.

CENTRIFUGAL 01L BURNER.

APPLICATION FILED 0CT.24.19\6.

Patented Feb. 5, 1918.

m M, www] l fb all whom-t may Beit known that-l, MILTON A. lnsiiiinyaq llt) tt tu t.restituir citizen ofthe United States, residing at the `city and county -if SanlFranciscoand State 'of California, have invented new and useful linprovementsin Centrifugal @il-'Burners of which the following is a specification. 'llhis invention relates to a centrifugal oil burner. 7

` Une of the objects of the present invention.

is to provide a simple compact oil burner,

in which the-oil is atomized and projected in a forward direction `with relation to the burner by the combined action ofcentrifugal force and'air under pressure, and particulai-1y to provide .a rotating cup lof novel construction by which atomization of the oil Another object of the invention is to provide an. anti-friction bearing for the cup together with means for delivering oil thereto,

and also t0 provide -nieans for forcing air both interior and exterior of the cup and simultaneously rotating the cup.

Further objects will hereinafter appear. rfhe invention consists of the parts and the construction and combinationof parts as hereinafter more fully described and claimed, having reference .to the accompanying drawings in which Figure 1 is a central longitudinal section through the burner.

Fig. 2 is a plan view of a portion of the atomizing cup showing the relative position of the stationary and rotating turbine vanes.

the outer end of which is secured an yatomizing cup- 8. Secured on the inner end of the tubular member 4 asat 9, is a pipe 1'0 which passes through the tubular shaft 'I and en- I tu @canoa or reu-erf retenu.

tersl the' inner end of the latomizing cup..V

rlfhis pipe together with-the tubular nieniberA t being provided for 4the purpose of deliver-.

ing fuel oil to the cup. Formed on the extemor-surface of the' cup 8, or suitablysecuredftheretdis a plurality of turbine vanes 411, and secured within the nozzle just ahead -of the vanes-ll, is av plurality of stationary vanes 12, and adapted to deliver -air, under pressure to thejT fitting with connected nozzle 2 from .a fan blower, or other source. of

air supply, is a pipe 13. -lFornied inthe tions 14, and. formed integral with the cup andsurroun-ding said perforations isv an an'- nular 4rearwardly projecting Harige l5;V 'llhe rear end of the cup is a plurality of perfora` operation of the burner. will be aS follows-:-- l Airunder pressure'entering the l tting A with connected nozzle 2, will pass through thestationary vanes 12 and iin'pnge upon the vanes l1, causing these with connected cup 8 to revolve Aat a comparatively high' speed. @il is at the same time deliveredto the tubular 'member 4' through 'the rear end., and is then conveyed through the pipe 10 directly into the atomizing cup, where itis discharged by centrifugal'action. 'llhe hi h revolving ,speedy of the cup` produces su! cient centrifugal force to projectthe' fuel oiln inthe form ofa thin spray which is furtherl brokenup by the 'air discharging through the nozzle after passage :through the turbine vanes. A highl combustible mixture is in this manner proA uced by the `combined action of the centrifugal force and air under pressure andas the air pressure is s'uficiently great to overcome the centrifugal action of .the atomizer, it' will readily be seen that a combustible mixture consistin of oil, vapor and air, will'beprojected in a orward direction with relation to the nozzle. A considerable portionof the -air is Ialso caught by the annular rearwardly projecting flange 15 and forced through the perforations 14 directly into the cup, inthis manner supplying addii tional air through the center. of the cone shaped flame, which has proven a great benefit so far as combustion is concerned.

Running parallel with the tubular meniber fl is a lubricating oil supply tube'l'?. This is connected at one-end with alubricating cup mounted on the head 3, and the opposite end with an oil duct 18 formed in the bearing head 5 which delivers the lubricatlng oil directly to the anti-friction ball bearings shown. This manner `of lubricating the revolving parts provided is exceedingly eiiicient and reliable, as the well produced 1n the bearing head 5 permits the revolving parts to be amply supplied with a lubricant at all times.

The burner here shown is exceedingly simple and compact in construction. All unnecessary revolvingparts and bearings ,have been eliminated, in this manner reduc- The provision of the intake opening 13 shown, permits `a whole battery of burners to be quickly connected and laced 1n position under a single boiler if esired, and as each oil and air connection is provided with a valve, independent adjustment as far as each burner is concerned, may be obtained.

The materials and nish of the several parts of the burner may be such as the experience and judgment of the manufacturer may dictate.

Ifwish it understood that various changes in form, proportions and minor details of construction may be resorted to within the scope of the appended claims, and that I do not wish to limit myself to the specific de- 4si or construction here shown. v

v aving thus described my invention, what I claim and desire to secure by Letters Patent is 1. In a centrifugal burner, the combination of a casing, an oil discharge anddistributing cup mounted in the axis of the kcasing for rotation, the outer discharge end of the cup forming with the adjacent mouth of the casing an annular orifice for the discharge of a film of air around the cup to l commingle with the oil discharged from the cup, means for delivering oil into the cup, a series of blades mounted on the exterior of the cup and constituting a fan, and a series of xed direction blades mounted on the cas ing exteriorly to the cup and adjacent to the rotatable fan blades on the cup.

2. A centrifugal oil burner comprising a casing adapted to be connected with a source of air supply under pressure, an air discharging nozzle on the casing, a tubular supporting member secured in the casing and extending into the nozzle, a bearing head on the outer end of said member, a hollow Ion the cu shaft journaled in said bearing head, an atomizing cup secured on the hollow shaft, a pipe secured in the outer end of the tubular member extending through the hollow shaft and communicating with the inner end of the atomizing cup, said tubular member and pipe forming a stationary conduit for the delivery of fuel oil to the cup, and means actuated by the air discharging through t e nozzle for rotating the cup.

3. A centrifugal oil burner comprising a casing adapted to be connected with a source of air supply under pressure, an air discharging nozzle on the casing, a tubular supporting member secured in the casing and extendmg into the nozzle, a bearin head on the outer end of said member, a hol ow shaft journaled in said bearing head, an atomizing cup secured on the hollow shaft a pipe secured in the outer end of the tubular member extending through the hollow shaft and communicating with the inner end of the atomizing cup, said tubular member and pipe forming a stationary conduit for the delivery of fuel oil to the cup, a set ofstationary turbine vanes secured in the nozzle and surrounding the cup, and turbine vanes formed on and surrounding the cup adjacent the stationary vanes.

4. A centrifugal oil burner comprising a casing adapted to be connected with a source of air supply under-pressure, an air discharging nozzle on the casing, a tubular supporting member secured in the casing and extendlng into the nozzle, a bearing head on the outer end ofsaid member, a hollow shaft journaled in said bearing head, an atomizing cup secured on the hollow shaft, a pipe secured in the outer end of the tubular member extending through the hollow shaft and communicating with the inner end of the atomizing cup, said tubular member and pipe forming a stationary conduit for the delivery of fuel oil to the cup, means on the cup actuated by the air discharging through the nozzle for rotating the cup, and means for passing a part of said air through the cup.

5. In a centrifugal oil burner, a casing, a hollow shaft journaled in the casing for rotation, an oil distributing cup on the hollow shaft and discharging from theend of the casing, a set of stationary turbine vanes secured in the casing and surroundin the cup, and turbine vanes formed on an surrounding the cup adjacent to the stationary vanes, said stationary vanes and rotatable vanes arranged in coperative relation,where by the stationary vanes direct the air currents to the rotary vanes and the latter discharge a ilm of air around the cup.

6. n an oil burner, the combination with an air discharging nozzle, of an atomizing cup journaled in the nozzle, means for rotating said cup, means for delivering fuel ln testimony whereof l have hereunto set oil to the cup, a plurality of pertorations my hand in the presence oftwo subscribing formed iln the inner end of the cup and an Witnesses.

annular rearwardly projecting flange formed TUN A. FESLER.. on the cup and surrounding the perforations Witnesses:

to deflect a part of the 'air discharging JOHN H. HERRING,

through the nozzle through the cup. W. 1 .it y r. 

